<?xml version="1.0" encoding="utf-8" ?>
<config>
 <rules>
 <rule name="namea">
  <params>
  <item name="p" type="get" pattern="(ios|android|)" />
  <item name="cid" type="get" pattern="(ios|android|)" />
  <item name="type" type="get" pattern="(ios|android|)" />
  <item name="sort" type="get" pattern="(ios|android|)" />
  <item name="action" type="post" pattern="(ios|android|)" />
  <item name="userAgent" type="header" pattern="(ios|android|)" />
  </params>
 </rule>
 
 <rule name="nameb">
  <params>
  <item name="p" type="get" pattern="(ios|android|)" />
  <item name="cid" type="get" pattern="(ios|android|)" />
  <item name="type" type="get" pattern="(ios|android|)" />
  <item name="sort" type="get" pattern="(ios|android|)" />
  <item name="action" type="post" pattern="(ios|android|)" />
  <item name="userAgent" type="header" pattern="(ios|android|)" />
  </params>
 </rule>
 
 <rule name="namec">
  <params>
  <item name="p" type="get" pattern="(ios|android|)" />
  <item name="cid" type="get" pattern="(ios|android|)" />
  <item name="type" type="get" pattern="(ios|android|)" />
  <item name="sort" type="get" pattern="(ios|android|)" />
  <item name="action" type="post" pattern="(ios|android|)" />
  <item name="userAgent" type="header" pattern="(ios|android|)" />
  </params>
 </rule>
 
 <rule name="named">
  <params>
  <item name="p" type="get" pattern="(ios|android|)" />
  <item name="cid" type="get" pattern="(ios|android|)" />
  <item name="type" type="get" pattern="(ios|android|)" />
  <item name="sort" type="get" pattern="(ios|android|)" />
  <item name="action" type="post" pattern="(ios|android|)" />
  <item name="userAgent" type="header" pattern="(ios|android|)" />
  </params>
 </rule>
 </rules>
</config>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;

namespace 多层级反序列
{
 [XmlType(TypeName = "config")]
 public class XmlConfig
 {
  [XmlArray("rules")]
  public List<rule> rules { get; set; }
 }

 [XmlType(TypeName = "rule")]
 public class rule
 {
  [XmlAttribute]
  public string name { get; set; }

  [XmlArray("params")]
  public List<paramsItem> @params { get; set; }
 }

 [XmlType(TypeName = "item")]
 public class paramsItem
 {
  [XmlAttribute]
  public string name { get; set; }
  [XmlAttribute]
  public string type { get; set; }
  [XmlAttribute]
  public string pattern { get; set; }
 }

 class Program
 {
  static void Main(string[] args)
  {
   /*
   XmlConfig xml1 = DeserializeFromXml<XmlConfig>("default.xml");
   XmlConfig xml = new XmlConfig();
   SerializeToXml<XmlConfig>("default.xml", xml);
   */

   XmlConfig xml1 = DeserializeFromXml<XmlConfig>("default.xml");

  }

  /// <summary>
  /// XML序列化某一类型到指定的文件
  /// </summary>
  /// <param name="filePath"></param>
  /// <param name="obj"></param>
  /// <param name="type"></param>
  public static void SerializeToXml<T>(string filePath, T obj)
  {
   try
   {
    using (System.IO.StreamWriter writer = new System.IO.StreamWriter(filePath))
    {
     System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
     xs.Serialize(writer, obj);
    }
   }
   catch (Exception ex)
   {
   }
  }
  /// <summary>
  /// 从某一XML文件反序列化到某一类型
  /// </summary>
  /// <param name="filePath">待反序列化的XML文件名称</param>
  /// <param name="type">反序列化出的</param>
  /// <returns></returns>
  public static T DeserializeFromXml<T>(string filePath)
  {
   try
   {
    if (!System.IO.File.Exists(filePath))
     throw new ArgumentNullException(filePath + " not Exists");

    using (System.IO.StreamReader reader = new System.IO.StreamReader(filePath))
    {
     System.Xml.Serialization.XmlSerializer xs = new System.Xml.Serialization.XmlSerializer(typeof(T));
     T ret = (T)xs.Deserialize(reader);
     return ret;
    }
   }
   catch (Exception ex)
   {
    return default(T);
   }
  }
 }
}